Apache Spark - A unified analytics engine for large-scale data processing
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ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
Logstash - transport and process your logs, events, or other data
Apache Beam is a unified programming model for Batch and Streaming data processing.
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
Thumbnailator - a thumbnail generation library for Java
An extremely easy way to perform background processing in Java. Backed by persistent storage. Open and free for commercial use.
A cluster computing framework for processing large-scale geospatial data
Simple API, Complex Emails (Jakarta Mail smtp wrapper)
SimpleITK: a layer built on top of the Insight Toolkit (ITK), intended to simplify and facilitate ITK's use in rapid prototyping, education and interpreted languages.
Esper Complex Event Processing, Streaming SQL and Event Series Analysis
The simple, stupid batch framework for Java
A curated list of resources related to the Java annotation processing API (JSR 269)
PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app.
An extensible Java framework for building event-driven applications that break up XML and non-XML data into chunks for data integration
The Frank!Framework is an easy-to-use, stateless integration framework which allows (transactional) messages to be modified and exchanged between different systems.
Fast, safe, complete libvips bindings for image processing in Java / JVM projects
Lowest barrier of entry to Image Processing, Computer Vision and Neural Networks on the JavaVM
Reflectionless command line parser
The Mines Java Toolkit
Read and write Excel (.xlsx, .xls), CSV, and ODS files in Java with one line of code. Annotation-based mapping, SAX streaming, built-in validation, 19 type converters, cell styling. A high-performance alternative to Apache POI.
Lightweight Java library for reading and writing fixed-width / fixed-length flat files using annotations on POJOs — for banking, payroll, EDI, mainframe, and batch integrations.
Multilingual library to easily parse date strings to java.util.Date objects.
Develop streaming applications for IBM Streams in Python, Java & Scala.